A trip can be empty.Logical formLearned from12 sentences. A list can be empty.Logical formLearned from12 sentences. Expressions can be empty.Logical formLearned from12 sentences. Crisp packets can be empty.Logical formLearned from12 sentences. A (shopping cart) can be empty.Logical formLearned from12 sentences. (Oil cans) can be empty.Logical formLearned from12 sentences. Some areas can be empty.Logical formLearned from12 sentences. Holes can be empty.Logical formLearned from12 sentences. A terrace can be empty.Logical formLearned from12 sentences. A sea can be empty.Logical formLearned from12 sentences. A (navy cargo ship) can be empty.Logical formLearned from12 sentences. A (polling station) can be empty.Logical formLearned from12 sentences. A (photo frame) can be empty.Logical formLearned from12 sentences. Mosques can be empty for (afternoon prayers).Logical formLearned from12 sentences. A saddle can be empty.Logical formLearned from12 sentences.